Finding the Fourth Proportional to 42,516.80, 58,754.10 and 31,887.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,516.80 : 58,754.10 = 31,887.98 : x
2. Step 2: Convert to fraction form
   42,516.80/58,754.10 = 31,887.98/x
3. Step 3: Cross multiply
   42,516.80x = 58,754.10 × 31,887.98
4. Step 4: Simplify right side
   42,516.80x = 1,873,549,112.51
5. Step 5: Solve for x
   x = 1,873,549,112.51/42,516.80
6. Step 6: Final answer
   x = 44,066.09