Finding the Fourth Proportional to 105,475.83, 145,555.54 and 60,152.64

Step by Step Solution

1. Step 1: Write the proportion equation
   105,475.83 : 145,555.54 = 60,152.64 : x
2. Step 2: Convert to fraction form
   105,475.83/145,555.54 = 60,152.64/x
3. Step 3: Cross multiply
   105,475.83x = 145,555.54 × 60,152.64
4. Step 4: Simplify right side
   105,475.83x = 8,755,549,997.63
5. Step 5: Solve for x
   x = 8,755,549,997.63/105,475.83
6. Step 6: Final answer
   x = 83,010.01