Finding the Fourth Proportional to 56,875, 85,322.55 and 19,426.32

Step by Step Solution

1. Step 1: Write the proportion equation
   56,875 : 85,322.55 = 19,426.32 : x
2. Step 2: Convert to fraction form
   56,875/85,322.55 = 19,426.32/x
3. Step 3: Cross multiply
   56,875x = 85,322.55 × 19,426.32
4. Step 4: Simplify right side
   56,875x = 1,657,503,159.52
5. Step 5: Solve for x
   x = 1,657,503,159.52/56,875
6. Step 6: Final answer
   x = 29,142.91