Finding the Fourth Proportional to 156,965,399.73, 216,632,878.14 and 90,010,559.79

Step by Step Solution

1. Step 1: Write the proportion equation
   156,965,399.73 : 216,632,878.14 = 90,010,559.79 : x
2. Step 2: Convert to fraction form
   156,965,399.73/216,632,878.14 = 90,010,559.79/x
3. Step 3: Cross multiply
   156,965,399.73x = 216,632,878.14 × 90,010,559.79
4. Step 4: Simplify right side
   156,965,399.73x = 19,499,246,630,300,256
5. Step 5: Solve for x
   x = 19,499,246,630,300,256/156,965,399.73
6. Step 6: Final answer
   x = 124,226,400.62