Finding the Fourth Proportional to 83,385.54, 115,070.90 and 45,659.80

Step by Step Solution

1. Step 1: Write the proportion equation
   83,385.54 : 115,070.90 = 45,659.80 : x
2. Step 2: Convert to fraction form
   83,385.54/115,070.90 = 45,659.80/x
3. Step 3: Cross multiply
   83,385.54x = 115,070.90 × 45,659.80
4. Step 4: Simplify right side
   83,385.54x = 5,254,114,279.82
5. Step 5: Solve for x
   x = 5,254,114,279.82/83,385.54
6. Step 6: Final answer
   x = 63,009.90