Finding the Fourth Proportional to 56,570.63, 78,067.28 and 31,076.93

Step by Step Solution

1. Step 1: Write the proportion equation
   56,570.63 : 78,067.28 = 31,076.93 : x
2. Step 2: Convert to fraction form
   56,570.63/78,067.28 = 31,076.93/x
3. Step 3: Cross multiply
   56,570.63x = 78,067.28 × 31,076.93
4. Step 4: Simplify right side
   56,570.63x = 2,426,091,668.71
5. Step 5: Solve for x
   x = 2,426,091,668.71/56,570.63
6. Step 6: Final answer
   x = 42,886.07