Finding the Fourth Proportional to 42,256.91, 63,417.24 and 28,897.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,256.91 : 63,417.24 = 28,897.98 : x
2. Step 2: Convert to fraction form
   42,256.91/63,417.24 = 28,897.98/x
3. Step 3: Cross multiply
   42,256.91x = 63,417.24 × 28,897.98
4. Step 4: Simplify right side
   42,256.91x = 1,832,630,133.18
5. Step 5: Solve for x
   x = 1,832,630,133.18/42,256.91
6. Step 6: Final answer
   x = 43,368.77