Finding the Fourth Proportional to 98,428.84, 147,666.72 and 31,868.98

Step by Step Solution

1. Step 1: Write the proportion equation
   98,428.84 : 147,666.72 = 31,868.98 : x
2. Step 2: Convert to fraction form
   98,428.84/147,666.72 = 31,868.98/x
3. Step 3: Cross multiply
   98,428.84x = 147,666.72 × 31,868.98
4. Step 4: Simplify right side
   98,428.84x = 4,705,987,746.35
5. Step 5: Solve for x
   x = 4,705,987,746.35/98,428.84
6. Step 6: Final answer
   x = 47,811.07