Finding the Fourth Proportional to 98,901, 136,483.38 and 56,460.65

Step by Step Solution

1. Step 1: Write the proportion equation
   98,901 : 136,483.38 = 56,460.65 : x
2. Step 2: Convert to fraction form
   98,901/136,483.38 = 56,460.65/x
3. Step 3: Cross multiply
   98,901x = 136,483.38 × 56,460.65
4. Step 4: Simplify right side
   98,901x = 7,705,939,666.58
5. Step 5: Solve for x
   x = 7,705,939,666.58/98,901
6. Step 6: Final answer
   x = 77,915.69