Finding the Fourth Proportional to 56,897.25, 78,518.15 and 31,746.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,897.25 : 78,518.15 = 31,746.75 : x
2. Step 2: Convert to fraction form
   56,897.25/78,518.15 = 31,746.75/x
3. Step 3: Cross multiply
   56,897.25x = 78,518.15 × 31,746.75
4. Step 4: Simplify right side
   56,897.25x = 2,492,696,078.51
5. Step 5: Solve for x
   x = 2,492,696,078.51/56,897.25
6. Step 6: Final answer
   x = 43,810.48