Finding the Fourth Proportional to 11,918,587.77, 17,878,045.68 and 3,398,925.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,918,587.77 : 17,878,045.68 = 3,398,925.15 : x
2. Step 2: Convert to fraction form
   11,918,587.77/17,878,045.68 = 3,398,925.15/x
3. Step 3: Cross multiply
   11,918,587.77x = 17,878,045.68 × 3,398,925.15
4. Step 4: Simplify right side
   11,918,587.77x = 60,766,139,094,600.85
5. Step 5: Solve for x
   x = 60,766,139,094,600.85/11,918,587.77
6. Step 6: Final answer
   x = 5,098,434.50