Finding the Fourth Proportional to 58,742.47, 81,005.43 and 52,261.93

Step by Step Solution

1. Step 1: Write the proportion equation
   58,742.47 : 81,005.43 = 52,261.93 : x
2. Step 2: Convert to fraction form
   58,742.47/81,005.43 = 52,261.93/x
3. Step 3: Cross multiply
   58,742.47x = 81,005.43 × 52,261.93
4. Step 4: Simplify right side
   58,742.47x = 4,233,500,112.28
5. Step 5: Solve for x
   x = 4,233,500,112.28/58,742.47
6. Step 6: Final answer
   x = 72,068.81