Finding the Fourth Proportional to 53,886.48, 74,363.32 and 31,238.63

Step by Step Solution

1. Step 1: Write the proportion equation
   53,886.48 : 74,363.32 = 31,238.63 : x
2. Step 2: Convert to fraction form
   53,886.48/74,363.32 = 31,238.63/x
3. Step 3: Cross multiply
   53,886.48x = 74,363.32 × 31,238.63
4. Step 4: Simplify right side
   53,886.48x = 2,323,008,009.43
5. Step 5: Solve for x
   x = 2,323,008,009.43/53,886.48
6. Step 6: Final answer
   x = 43,109.29