Finding the Fourth Proportional to 151,390,713.19, 208,919,275.72 and 81,776,124.82

Step by Step Solution

1. Step 1: Write the proportion equation
   151,390,713.19 : 208,919,275.72 = 81,776,124.82 : x
2. Step 2: Convert to fraction form
   151,390,713.19/208,919,275.72 = 81,776,124.82/x
3. Step 3: Cross multiply
   151,390,713.19x = 208,919,275.72 × 81,776,124.82
4. Step 4: Simplify right side
   151,390,713.19x = 17,084,608,768,582,714
5. Step 5: Solve for x
   x = 17,084,608,768,582,714/151,390,713.19
6. Step 6: Final answer
   x = 112,851,101.69