Finding the Fourth Proportional to 5,157,510.89, 7,736,531.25 and 1,319,366.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,157,510.89 : 7,736,531.25 = 1,319,366.55 : x
2. Step 2: Convert to fraction form
   5,157,510.89/7,736,531.25 = 1,319,366.55/x
3. Step 3: Cross multiply
   5,157,510.89x = 7,736,531.25 × 1,319,366.55
4. Step 4: Simplify right side
   5,157,510.89x = 10,207,320,510,320.07
5. Step 5: Solve for x
   x = 10,207,320,510,320.07/5,157,510.89
6. Step 6: Final answer
   x = 1,979,117.59