Finding the Fourth Proportional to 55,916,876,064.53, 83,875,315,209.12 and 13,421,773,326.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,916,876,064.53 : 83,875,315,209.12 = 13,421,773,326.15 : x
2. Step 2: Convert to fraction form
   55,916,876,064.53/83,875,315,209.12 = 13,421,773,326.15/x
3. Step 3: Cross multiply
   55,916,876,064.53x = 83,875,315,209.12 × 13,421,773,326.15
4. Step 4: Simplify right side
   55,916,876,064.53x = 1,125,755,468,396,190,105,600
5. Step 5: Solve for x
   x = 1,125,755,468,396,190,105,600/55,916,876,064.53
6. Step 6: Final answer
   x = 20,132,660,256.22