Finding the Fourth Proportional to 152,123.98, 228,216.40 and 46,939

Step by Step Solution

1. Step 1: Write the proportion equation
   152,123.98 : 228,216.40 = 46,939 : x
2. Step 2: Convert to fraction form
   152,123.98/228,216.40 = 46,939/x
3. Step 3: Cross multiply
   152,123.98x = 228,216.40 × 46,939
4. Step 4: Simplify right side
   152,123.98x = 10,712,249,599.60
5. Step 5: Solve for x
   x = 10,712,249,599.60/152,123.98
6. Step 6: Final answer
   x = 70,417.89