Finding the Fourth Proportional to 65,092.61, 97,510.74 and 42,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,092.61 : 97,510.74 = 42,838.50 : x
2. Step 2: Convert to fraction form
   65,092.61/97,510.74 = 42,838.50/x
3. Step 3: Cross multiply
   65,092.61x = 97,510.74 × 42,838.50
4. Step 4: Simplify right side
   65,092.61x = 4,177,214,040.51
5. Step 5: Solve for x
   x = 4,177,214,040.51/65,092.61
6. Step 6: Final answer
   x = 64,173.40