Finding the Fourth Proportional to 58,764.86, 88,128.56 and 19,312.86

Step by Step Solution

1. Step 1: Write the proportion equation
   58,764.86 : 88,128.56 = 19,312.86 : x
2. Step 2: Convert to fraction form
   58,764.86/88,128.56 = 19,312.86/x
3. Step 3: Cross multiply
   58,764.86x = 88,128.56 × 19,312.86
4. Step 4: Simplify right side
   58,764.86x = 1,702,014,589.56
5. Step 5: Solve for x
   x = 1,702,014,589.56/58,764.86
6. Step 6: Final answer
   x = 28,963.14