Finding the Fourth Proportional to 53,445,662.55, 80,168,493.83 and 45,792,912.15

Step by Step Solution

1. Step 1: Write the proportion equation
   53,445,662.55 : 80,168,493.83 = 45,792,912.15 : x
2. Step 2: Convert to fraction form
   53,445,662.55/80,168,493.83 = 45,792,912.15/x
3. Step 3: Cross multiply
   53,445,662.55x = 80,168,493.83 × 45,792,912.15
4. Step 4: Simplify right side
   53,445,662.55x = 3,671,148,794,926,042.50
5. Step 5: Solve for x
   x = 3,671,148,794,926,042.50/53,445,662.55
6. Step 6: Final answer
   x = 68,689,368.23