Finding the Fourth Proportional to 105,549,684.48, 145,658,463.12 and 59,140,271.16

Step by Step Solution

1. Step 1: Write the proportion equation
   105,549,684.48 : 145,658,463.12 = 59,140,271.16 : x
2. Step 2: Convert to fraction form
   105,549,684.48/145,658,463.12 = 59,140,271.16/x
3. Step 3: Cross multiply
   105,549,684.48x = 145,658,463.12 × 59,140,271.16
4. Step 4: Simplify right side
   105,549,684.48x = 8,614,281,005,665,659
5. Step 5: Solve for x
   x = 8,614,281,005,665,659/105,549,684.48
6. Step 6: Final answer
   x = 81,613,517.35