Finding the Fourth Proportional to 65,953.47, 91,011.47 and 42,077.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,953.47 : 91,011.47 = 42,077.60 : x
2. Step 2: Convert to fraction form
   65,953.47/91,011.47 = 42,077.60/x
3. Step 3: Cross multiply
   65,953.47x = 91,011.47 × 42,077.60
4. Step 4: Simplify right side
   65,953.47x = 3,829,543,564.63
5. Step 5: Solve for x
   x = 3,829,543,564.63/65,953.47
6. Step 6: Final answer
   x = 58,064.32