Finding the Fourth Proportional to 108,612,513.78, 149,890,393.24 and 61,570,499.00

Step by Step Solution

1. Step 1: Write the proportion equation
   108,612,513.78 : 149,890,393.24 = 61,570,499.00 : x
2. Step 2: Convert to fraction form
   108,612,513.78/149,890,393.24 = 61,570,499.00/x
3. Step 3: Cross multiply
   108,612,513.78x = 149,890,393.24 × 61,570,499.00
4. Step 4: Simplify right side
   108,612,513.78x = 9,228,826,306,189,648
5. Step 5: Solve for x
   x = 9,228,826,306,189,648/108,612,513.78
6. Step 6: Final answer
   x = 84,970,193.45