Finding the Fourth Proportional to 100,787,477.32, 139,012,461.56 and 76,008,708.42

Step by Step Solution

1. Step 1: Write the proportion equation
   100,787,477.32 : 139,012,461.56 = 76,008,708.42 : x
2. Step 2: Convert to fraction form
   100,787,477.32/139,012,461.56 = 76,008,708.42/x
3. Step 3: Cross multiply
   100,787,477.32x = 139,012,461.56 × 76,008,708.42
4. Step 4: Simplify right side
   100,787,477.32x = 10,566,157,657,460,498
5. Step 5: Solve for x
   x = 10,566,157,657,460,498/100,787,477.32
6. Step 6: Final answer
   x = 104,836,016.72