Finding the Fourth Proportional to 101,890.71, 152,786.88 and 42,710.49

Step by Step Solution

1. Step 1: Write the proportion equation
   101,890.71 : 152,786.88 = 42,710.49 : x
2. Step 2: Convert to fraction form
   101,890.71/152,786.88 = 42,710.49/x
3. Step 3: Cross multiply
   101,890.71x = 152,786.88 × 42,710.49
4. Step 4: Simplify right side
   101,890.71x = 6,525,602,510.37
5. Step 5: Solve for x
   x = 6,525,602,510.37/101,890.71
6. Step 6: Final answer
   x = 64,045.12