Finding the Fourth Proportional to 137,096,477.93, 189,193,139.52 and 78,360,404.18

Step by Step Solution

1. Step 1: Write the proportion equation
   137,096,477.93 : 189,193,139.52 = 78,360,404.18 : x
2. Step 2: Convert to fraction form
   137,096,477.93/189,193,139.52 = 78,360,404.18/x
3. Step 3: Cross multiply
   137,096,477.93x = 189,193,139.52 × 78,360,404.18
4. Step 4: Simplify right side
   137,096,477.93x = 14,825,250,879,924,366
5. Step 5: Solve for x
   x = 14,825,250,879,924,366/137,096,477.93
6. Step 6: Final answer
   x = 108,137,357.75