Finding the Fourth Proportional to 88,037,105.90, 132,079,278.45 and 78,518,407.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,037,105.90 : 132,079,278.45 = 78,518,407.10 : x
2. Step 2: Convert to fraction form
   88,037,105.90/132,079,278.45 = 78,518,407.10/x
3. Step 3: Cross multiply
   88,037,105.90x = 132,079,278.45 × 78,518,407.10
4. Step 4: Simplify right side
   88,037,105.90x = 10,370,654,554,811,356
5. Step 5: Solve for x
   x = 10,370,654,554,811,356/88,037,105.90
6. Step 6: Final answer
   x = 117,798,676.46