Finding the Fourth Proportional to 52,315.58, 78,560.86 and 51,907.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,315.58 : 78,560.86 = 51,907.34 : x
2. Step 2: Convert to fraction form
   52,315.58/78,560.86 = 51,907.34/x
3. Step 3: Cross multiply
   52,315.58x = 78,560.86 × 51,907.34
4. Step 4: Simplify right side
   52,315.58x = 4,077,885,270.71
5. Step 5: Solve for x
   x = 4,077,885,270.71/52,315.58
6. Step 6: Final answer
   x = 77,947.82